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Instanton Induced Open String Superpotentials and Branes at Singularities

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dc.creator Ibáñez, Luis E.
dc.creator Uranga Urteaga, Ángel M.
dc.date 2008-07-02T10:58:11Z
dc.date 2008-07-02T10:58:11Z
dc.date 2007-11-08
dc.date.accessioned 2017-01-31T02:18:39Z
dc.date.available 2017-01-31T02:18:39Z
dc.identifier arXiv:0711.1316v1 [hep-th]
dc.identifier http://hdl.handle.net/10261/5517
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5517
dc.description 41 pages, 2 figures.
dc.description We study different aspects of the non-perturbative superpotentials induced by Euclidean E3-branes on systems of D3/D7-branes located at Abelian orbifold singularities. We discuss in detail how the induced couplings are consistent with the U(1) symmetries carried by the D3/D7-branes. We construct different compact and non-compact examples, and show phenomenologically relevant couplings like μ-terms or certain Yukawa couplings generated by these E3 instantons. Some other novel effects are described. We show an example where E3-instantons combine with standard gauge instantons to yield new multi-instanton effects contributing to superpotential, along the lines of ref.[28]. In the case of non-SUSY Z_N tachyon-free singularities it is shown how E3-instantons give rise to non perturbative scalar couplings including exponentially suppressed scalar bilinears.
dc.description This work has been supported by the European Commission under RTN European Programs MRTN-CT-2004-503369, MRTN-CT-2004-005105, by the CICYT (Spain), the Comunidad de Madrid under project HEPHACOS P-ESP-00346 and the Ingenio 2010 CONSOLIDER program CPAN.
dc.format 320540 bytes
dc.format application/pdf
dc.language eng
dc.relation IFT-UAM/CSIC-07-57
dc.relation CERN-PH-TH/2007-215
dc.relation Preprint
dc.rights openAccess
dc.subject High Energy Physics - Theory
dc.title Instanton Induced Open String Superpotentials and Branes at Singularities
dc.type Pre-print

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